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view src/ui/mfw/ti1_tmr.c @ 268:f2e52cab0a73

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abb_inth.c: check all interrupt causes, not just one The original code used if - else if - else if etc constructs, thus the first detected interrupt was the only one handled. However, Iota ITSTATREG is a clear-on-read register, thus if we only handle the first detected interrupt and skip checking the others, then the other interrupts will be lost, if more than one interrupt happened to occur in one ABB interrupt handling cycle - a form of rare race condition. Change the code to check all interrupts that were read in this cycle.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 13 Jun 2021 18:17:53 +0000
parents 92abb46dc1ba
children
line wrap: on
line source

/*
+--------------------------------------------------------------------+
| PROJECT: MMI-Framework (8417)         $Workfile:: ti1_tmr.c       $|
| $Author:: Es  $ CONDAT GmbH           $Revision:: 8               $|
| CREATED: 28.01.99                     $Modtime:: 18.02.00 17:57   $|
| STATE  : code                                                      |
+--------------------------------------------------------------------+

   MODULE  : TI1_TMR

   PURPOSE : timer driver interface (TI1 VERSION)
             uses only one system timer (programmed in milliseconds)

   EXPORT  :

   TO DO   :

   $History:: ti1_tmr.c                                             $
 *
 *Sep 19, 2006  DRT OMAPS00091093   x0047075(Archana)
 *	Description: optimizing of the timer related vsi interface
 *	Solution:Replacing the Vsi_t_start ,Vsi_t_stop with TIMER_START and TIMER_STOP
 *****************  Version 8  *****************
 * User: Es           Date: 18.02.00   Time: 17:58
 * Updated in $/GSM/Condat/MS/SRC/MFW
 * tmrStart(): bug in inner 'if'-clause
 *
 * *****************  Version 7  *****************
 * User: Es           Date: 6.07.99    Time: 12:41
 * Updated in $/GSM/DEV/MS/SRC/MFW
 *
 * *****************  Version 6  *****************
 * User: Es           Date: 14.06.99   Time: 12:15
 * Updated in $/GSM/DEV/MS/SRC/MFW
 *
 * *****************  Version 5  *****************
 * User: Es           Date: 1.04.99    Time: 17:07
 * Updated in $/GSM/DEV/MS/SRC/MFW
 * removed lots of traces
 *
 * *****************  Version 4  *****************
 * User: Es           Date: 17.02.99   Time: 19:11
 * Updated in $/GSM/DEV/MS/SRC/MFW
 *
 * *****************  Version 3  *****************
 * User: Es           Date: 14.02.99   Time: 20:57
 * Updated in $/GSM/DEV/MS/SRC/MFW
 *
 * *****************  Version 2  *****************
 * User: Es           Date: 11.02.99   Time: 16:43
 * Updated in $/GSM/DEV/MS/SRC/MFW
 *
 * *****************  Version 1  *****************
 * User: Es           Date: 9.02.99    Time: 14:54
 * Created in $/GSM/DEV/MS/SRC/MFW
 * TI display & keyboard interface for MFW
*/
#define ENTITY_MFW

#if defined (NEW_FRAME)

#include "typedefs.h"
#include "vsi.h"
#include "custom.h"
#include "gsm.h"

#else

#include "STDDEFS.H"
#include "custom.h"
#include "gsm.h"
#include "vsi.h"

#endif

#include "mfw_mfw.h"
#include "mfw_sys.h"
#include "drv_tmr.h"
#include "l4_tim.h"
#include "ti1_tmr.h"

#include "cus_aci.h"

#if !defined (NEW_FRAME)
void aci_flush_fifo (T_VSI_THANDLE timer);
#endif

static void (*sig) (void) = 0;          /* timer signaling function */
#if !defined (NEW_FRAME)
static T_VSI_THANDLE timer = 0;         /* VSI timer handle         */
#endif

/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : ti1_tmr            |
| STATE   : code                        ROUTINE : tmrTimer           |
+--------------------------------------------------------------------+

  PURPOSE : forward timer signal

*/
#if defined (NEW_FRAME)

int mfw_timeout (USHORT t)
{
    if (sig AND t EQ MFW_TIMER)
    {
      sig();
      return 1;
    }
    return 0;
}

#else

int mfw_timeout (T_VSI_THANDLE t)
{
    if (sig && t == timer)
    {
        sig();
        return 1;
    }

    return 0;
}
#endif

/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : ti1_tmr            |
| STATE   : code                        ROUTINE : tmrInit            |
+--------------------------------------------------------------------+

  PURPOSE : initialize timer driver

*/

#if defined (NEW_FRAME)

int tmrInit (void (*s)(void))
{
    sig = s;

    TRACE_FUNCTION("tmrInit()");

    if (!s)
        return 0;

    return 1;
}

#else

int tmrInit (void (*s)(void))
{
    sig = s;

    TRACE_FUNCTION("tmrInit()");

    if (!s)
        return 0;

    timer = vsi_t_open(VSI_CALLER "mfwTimer");
    if (timer < VSI_OK)
    {
        TRACE_ERROR("TI1_TMR_INIT: No Timer");
        sig = 0;
        return 0;
    }

    return 1;
}
#endif

/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : ti1_tmr            |
| STATE   : code                        ROUTINE : tmrExit            |
+--------------------------------------------------------------------+

  PURPOSE : finalize timer driver

*/

#if defined (NEW_FRAME)

int tmrExit (void)
{
    TRACE_FUNCTION("tmrExit()");

    if (sig)
    {
      tmrStop();
    }
    sig = 0;

    return 1;
}

#else

int tmrExit (void)
{
    TRACE_FUNCTION("tmrExit()");

    if (sig)
    {
        tmrStop();
        vsi_t_close(VSI_CALLER timer);
    }
    timer = 0;
    sig = 0;

    return 1;
}

#endif

/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : ti1_tmr            |
| STATE   : code                        ROUTINE : tmrStart           |
+--------------------------------------------------------------------+

  PURPOSE : start timer

*/
#if defined (NEW_FRAME)

void tmrStart (ULONG ms)
{
  if (sig)
  {
    if (ms < 5)                         /* at least one tick        */
      ms = 5;                           /* set to minimum           */
// Sep 19, 2006  DRT OMAPS00091093   x0047075(Archana)
//Replacing Vsi_t_start with TIMER_START
TIMER_START(aci_handle, MFW_TIMER, ms);
  }
}

#else

void tmrStart (U32 ms)
{
    T_VSI_TVALUE toTime;                /* VSI timer value          */

    if (sig && timer >= VSI_OK)
    {
        toTime = (ms * TMR_PREC) / TMR_TICK;
        if (ms && !toTime)
            toTime = 1;                 /* set to minimum           */

// Sep 19, 2006  DRT OMAPS00091093   x0047075(Archana)
//Replacing Vsi_t_start with TIMER_START
       TIMER_START(VSI_CALLER timer,toTime);
    }
}
#endif

/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : ti1_tmr            |
| STATE   : code                        ROUTINE : tmrStop            |
+--------------------------------------------------------------------+

  PURPOSE : stop timer

*/

#if defined (NEW_FRAME)

ULONG tmrStop (void)
{
  T_TIME left;                         /* VSI timer value          */

  if (sig)
  {
    vsi_t_status(VSI_CALLER MFW_TIMER, &left);
// Sep 19, 2006  DRT OMAPS00091093   x0047075(Archana)
//Replacing Vsi_t_stop with TIMER_STOP
TIMER_STOP(aci_handle, MFW_TIMER);
    return (left);
  }
  return 0;
}

#else

U32 tmrStop (void)
{
    T_VSI_TVALUE left;                  /* VSI timer value          */

    if (sig && timer >= VSI_OK)
    {
        vsi_t_status(VSI_CALLER timer,&left);
// Sep 19, 2006  DRT OMAPS00091093   x0047075(Archana)
//Replacing Vsi_t_stop with TIMER_STOP
TIMER_STOP(VSI_CALLER timer);
        aci_flush_fifo(timer);
        return ((left * TMR_TICK) / TMR_PREC);
    }

    return 0;
}

#endif

/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : ti1_tmr            |
| STATE   : code                        ROUTINE : tmrLeft            |
+--------------------------------------------------------------------+

  PURPOSE : report left time

*/

#if defined (NEW_FRAME)

ULONG tmrLeft (void)
{
    T_TIME left;                  /* VSI timer value          */

    if (sig)
    {
      vsi_t_status(VSI_CALLER MFW_TIMER, &left);
      return (left);
    }
    return 0;
}

#else

U32 tmrLeft (void)
{
    T_VSI_TVALUE left;                  /* VSI timer value          */

    if (sig && timer >= VSI_OK)
    {
        vsi_t_status(VSI_CALLER timer,&left);
        return ((left * TMR_TICK) / TMR_PREC);
    }

    return 0;
}

#endif